<?php

class SiteController extends Controller
{
	public $_model;
	/**
	 * Declares class-based actions.
	 */
    public $layout='//layouts/column3';
    public function filters()
	{
		return array(
			'accessControl', // perform access control for CRUD operations
		);
	}
	public function actions()
	{
		return array(
			// captcha action renders the CAPTCHA image displayed on the contact page
			'captcha'=>array(
				'class'=>'CCaptchaAction',
				'backColor'=>0xFFFFFF,
			),
			// page action renders "static" pages stored under 'protected/views/site/pages'
			// They can be accessed via: index.php?r=site/page&view=FileName
			'page'=>array(
				'class'=>'CViewAction',
			),
		);
	}
    
    public function accessRules ()
    {
        return array (
            array (
                'allow',
                'actions'=>array('login','register',),
                'users'=>array('*'),
            ),
            array (
                'allow',
                'actions'=>array('logout','changepass',),
                'users'=>array('@'),
            ),
            array (
                'allow',
                'actions'=>array(''),
                'users'=>array('admin'),
            ),
            array (
                'deny',
                'users'=>array('*'),
            ),
        );
    }

	/**
	 * This is the default 'index' action that is invoked
	 * when an action is not explicitly requested by users.
	 */
	public function actionIndex()
	{
		// renders the view file 'protected/views/site/index.php'
		// using the default layout 'protected/views/layouts/main.php'
		$this->render('index');
	}

	/**
	 * This is the action to handle external exceptions.
	 */
	public function actionError()
	{
	    if($error=Yii::app()->errorHandler->error)
	    {
	    	if(Yii::app()->request->isAjaxRequest)
	    		echo $error['message'];
	    	else
	        	$this->render('error', $error);
	    }
	}

	/**
	 * Displays the login page
	 */
	public function actionLogin()
	{
		$model=new LoginForm;

		// if it is ajax validation request
		if(isset($_POST['ajax']) && $_POST['ajax']==='login-form')
		{
			echo CActiveForm::validate($model);
			Yii::app()->end();
		}

		// collect user input data
		if(isset($_POST['LoginForm']))
		{
			$model->attributes=$_POST['LoginForm'];
			// validate user input and redirect to the previous page if valid
			if($model->validate() && $model->login())
				$this->redirect(Yii::app()->user->returnUrl);
		}
		// display the login form
		$this->render('login',array('model'=>$model));
	}

	/**
	 * Logs out the current user and redirect to homepage.
	 */
	public function actionLogout()
	{
		Yii::app()->user->logout();
		$this->redirect(Yii::app()->homeUrl);
	}
	
	public function actionRegister()
	{
		$model = new Users;
		
		if (isset($_POST['Users']))
		{
			$model->attributes=$_POST['Users'];
			if($model->save())
				{
					$this->redirect(array('view','id'=>$model->id));
				}
				
		}
		
		$this->render('register',array('model'=>$model));
	}
	
	public function actionChangepass ($id)
	{
		$model = $this->loadModel ($id);
		
		if (isset($_POST['Users']))
		{
			$model->attributes=$_POST['Users'];
			if ($model->save())
				$this->redirect(Yii::app()->homeUrl);
		}
		
		$this->render('ChangePass',array('model'=>$model));
	}
	
	public function loadModel ($id)
	{
		$model = Users::model()->findByPk($id);
		if ($model === null)
			throw new CHttpException (404,'khong tim thay!');
		return $model;
		/*if ($this->_model === null)
		{
			if (isset($_GET['id']))
				$this->_model = Users::model()->findByPk($_GET['id']);
			if ($this->_model === null)
				throw new CHttpException (404,'khong tim thay!');
		}
		return $this->_model;*/
	}
    	protected function performAjaxValidation($model)
	{
		if(isset($_POST['ajax']) && $_POST['ajax']==='users-form')
		{
			echo CActiveForm::validate($model);
			Yii::app()->end();
		}
	}
}